title: A signal to noise ratio measurement for single shot laser pulses by use of an optical Kerr gate.
abstract: A new design of signal to noise ratio (SNR) measurement for single shot laser pulses, based on a stepped grating and an optical Kerr gate (OKG), is presented. A single shot laser pulse was simultaneously divided into multi-pulses in both time and space. Intensity-space distribution of laser multi-pulses, which was recorded with a CCD detector, was transformed into intensity-time distribution. Time resolution of 1.95 ps and detection time range of 42.9 ps were obtained, respectively. Moreover, optical spatial localization attenuators were introduced into optical path to acquire wide dynamic range in the SNR measurement and, as a result, the dynamic range has been extended remarkably.
authors.affiliation: State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China. amilyhjf@163.com
authors.forename: Junfang
authors.initials: J
authors.lastname: He
authors.forename: Changjun
authors.initials: C
authors.lastname: Zhu
authors.forename: Yishan
authors.initials: Y
authors.lastname: Wang
authors.forename: Guanghua
authors.initials: G
authors.lastname: Cheng
authors.forename: Kuaisheng
authors.initials: K
authors.lastname: Zou
authors.forename: Dengke
authors.initials: D
authors.lastname: Wu
authors.forename: Xudong
authors.initials: X
authors.lastname: Xie
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D012031:Refractometry / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*